. -- michigan. what is happening now new next hour. jon: mexican american singing sensation jenni rivera is confirmed dead after the plane she was using crashed in mountains in north mexico. six other were killed. they are searching for wreckage in the plane. she sold millions of records and won all kinds of awards. jenna: well a young lukemia patient is now in full remission after a experimental new treatment that some say may change the way that we treat cancer. doctors using a disabled form of hiv altered 6-year-old emma whitehead's immune cells. her parents agreeing to the procedure in a last-ditch effort to save her life. six months later apparently she is doing okay. dr. lee vinocur of lsu is with us now. let's go through this step by step, doctor. why a disabled form of hiv? >> well it is interesting. it is a form of immune therapy and hiv is a virus that invades t-cells and very frequently we use viruses as vehicles to get into cells and by using the t-cells, the t cells get targeted and engineered to kill her b-cells which are